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fix shell going crazy when hitting bottom of screen

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This commit is contained in:
Ryan T
2026-02-15 00:47:35 -05:00
parent b6d1b9398f
commit 303449e13c
2 changed files with 30 additions and 8 deletions
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35
Src/Hyperion-bash/bin/bash
View File

@@ -12,7 +12,7 @@ local fs = require("sys.fs")
syscall.devctl(1,"clear")
syscall.devctl(1,"sfgc",1)
syscall.devctl(1,"spos",1,1)
print("HyperionOS Bash Shell "..tostring(syscall.getpid()))
print("HyperionOS Bash Shell")
local userhost = (syscall.getUsername() or "Unknown").."@"..(syscall.getHostname() or "Unknown")
local commandHistory = {}
@@ -22,14 +22,10 @@ syscall.setEnviron("PATH","/bin/")
syscall.chdir("/")
for i = 1, 16 do
syscall.devctl(1,"spos",(i * 3)-2,2)
syscall.devctl(1,"sbgc",i)
printInline(" ");
syscall.devctl(1,"spos",(i * 3)-2,3)
syscall.devctl(1,"sbgc",16)
printInline(i);
end
syscall.devctl(1,"spos",1,4)
print("\n")
syscall.sigcatch(function(sig)
if sig == 1 then
@@ -69,22 +65,30 @@ function getUserInput()
end
elseif key == "=" then --TODO: REPLACE WITH UP ARROW
if history < #commandHistory then
syscall.devctl(1,"spos",curOffsetX,curOffsetY)
printInline((" "):rep(#input + 1))
history = history + 1
input = commandHistory[#commandHistory - history + 1]
cursorPos = #input + 1
end
elseif key == "]" then --TODO: REPLACE WITH DOWN ARROW
if history > 1 then
syscall.devctl(1,"spos",curOffsetX,curOffsetY)
printInline((" "):rep(#input + 1))
history = history - 1
input = commandHistory[#commandHistory - history + 1]
cursorPos = #input + 1
elseif history == 1 then
syscall.devctl(1,"spos",curOffsetX,curOffsetY)
printInline((" "):rep(#input + 1))
history = 0
input = ""
cursorPos = 1
end
elseif key == "\b" then
if cursorPos > 1 then
syscall.devctl(1,"spos",curOffsetX,curOffsetY)
printInline((" "):rep(#input + 1))
input = string.sub(input, 1, cursorPos-2)..string.sub(input, cursorPos)
cursorPos = cursorPos - 1
end
@@ -96,6 +100,16 @@ function getUserInput()
input = string.sub(input, 1, cursorPos-1)..key..string.sub(input, cursorPos)
cursorPos = cursorPos + 1
end
local screenSizeStr = syscall.devctl(1, "size")
local sizeX = tonumber(screenSizeStr:sub(1, screenSizeStr:find(";")-1))
local sizeY = tonumber(screenSizeStr:sub(screenSizeStr:find(";")+1))
local totalChars = sizeX * sizeY
local eocCharNum = ((curOffsetY - 1) * sizeX) + curOffsetX + #input
if eocCharNum >= totalChars then
syscall.devctl(1,"spos",sizeX,sizeY)
printInline(" ")
curOffsetY = curOffsetY - 1
end
end
syscall.devctl(1,"spos",curOffsetX,curOffsetY)
printInline(string.sub(input, 1, cursorPos-1))
@@ -111,7 +125,9 @@ function getUserInput()
syscall.devctl(1,"sfgc",1)
syscall.devctl(1,"sbgc",16)
printInline(string.sub(input, cursorPos+1))
printInline((" "):rep(200))
if cursorPos <= #input then
printInline(" ")
end
local curBlink = ((math.floor(syscall.getUptime() / 500) % 2) == 0)
if curBlink ~= blinkState then
blinkState = curBlink
@@ -181,6 +197,11 @@ function runCommand(command)
end
if terminate then
local success, err = syscall.kill(proc)
if success then
syscall.devctl(1,"sfgc",2)
print("\nProgram Terminated.")
syscall.devctl(1,"sfgc",1)
end
terminate = false
break
end

1
Src/Hyperion-bash/bin/sysdump
View File

@@ -2,3 +2,4 @@ local syscalls=syscall.sysdump()
for i=1, #syscalls do
print(syscalls[i])
end
print("Total # of syscalls: "..tostring(#syscalls))